Technical S pecification IQ24240QTA05 24V in 24Vout 5Amp 2250Vdc Quar ter-brick Input Output Current Isolation DC/DC Conver ter T h e I Q 2 4 2 4 0 Q T A 0 5 I nQ or TM T e r a q u a r t e r - b r i c k c o n v e r t e r i s a n ext - gene ra t ion , bo a rd -m ou nt a bl e, is ol a te d, fixe d s wit ch ing fr e q u enc y DC/ DC con v erter t h at u s es sy n ch ro no us r ectific atio n t o a ch ieve e xtreme ly h igh con ver sio n efficie ncy . Th e p owe r dis s ip ated b y the con verter is s o l ow th a t a h ea tsin k is no t r eq ui red , wh ich s aves co st, w eight, heigh t, a nd a p pl ica tion e ffor t. A n op tion al b a se- p la ted v ers io n i s a va ila b le for t ho s e d ema n din g a pp l ica t ion s th a t req u ire he at s ink s , a nd fo r ha rs h e nvir on ments an e ncas ed vers ion is als o available. Th e Ter a s er ies offer s th e ma ximu m u sa b le o ut p u t c ur r ent fo r a n y s t an dard "quarter-brick" module. RoHS compliant (see page 9). Open Frame Operational Features Encased * High efficiency, 91.5% at full rated load current * Delivers up to 5 amps of output current (120W) with minimal derating - no heatsink required * Operating input voltage range: 18V - 36V * Fixed frequency switching provides predictable EMI performance * No minimum load requirement means no preload resistors required Mechanical Features * Industry standard quarter-brick pin-out configuration * Industry standard size: 1.45" x 2.3" (36.8x58.4mm) * Total open frame height less than 0.43" (10.9mm), permits better airflow and smaller card pitch * Total open frame weight: 1.5 oz. (42 grams) * Flanged pins designed to permit surface mount soldering (allowing to avoid wave solder) using FPiP technique Contr ol Features * On/Off control referenced to input side * Remote sense for the output voltage compensates for output distribution drops * Output voltage trim permits custom voltages and voltage margining Product # IQ24240QTA05 Phone 1-888-567-9596 www.synqor.com Pr otection Features * Input under-voltage lockout disables converter at low input voltage conditions * Output current limit and short circuit protection protects converter and load from permanent damage and consequent hazardous conditions * Active back bias limit prevents damage to converter from external load induced pre-bias * Output over-voltage protection protects load from damaging voltages * Thermal shutdown protects converter from abnormal environmental conditions Safety Features * 2250V, 30 MW input-to-output isolation provides input/output ground separation * UL/cUL 60950-1 recognized (US & Canada), basic insulation rating (pending) * TUV certified to EN60950-1 (pending) * Meets 72/23/EEC and 93/68/EEC directives which facilitates CE Marking in user's end product * Board and plastic components meet UL94V-0 flammability requirements Doc.# 005-I224005 Rev. B 7/16/07 Page 1 Input: Output: Current: Package: Technical Specification 18-36 V 24 V 5A Quarter-brick IQ24240QTA05 ELECTRICAL CHARACTERISTICS TA=25C, airflow rate=300 LFM, Vin=24Vdc unless otherwise noted; full operating temperature range is -40C to +100C ambient temperature with appropriate power derating. Specifications subject to change without notice. Parameter P Min. Typ. Max. Units 50 40 50 V V V 2250 2250 2250 100 125 18 Vd c Vd c Vd c C C V Notes & Conditions ABSOLUTE MAXIMUM RATINGS Input Voltage Non-Operating Operating Operating Transient Protection Isolation Voltage Input to Output Input to Base-Plate Output to Base-Plate Operating Temperature Storage Temperature Voltage at ON/OFF input pin -40 -55 -2 Continuous Continuous 100ms transient, square wave Basic insulation, Pollution Degree 2 INPUT CHARACTERISTICS Operating Input Voltage Range Input Under-Voltage Lockout Turn-On Voltage Threshold Turn-Off Voltage Threshold Lockout Voltage Hysteresis Maximum Input Current No-Load Input Current Disabled Input Current Response to Input Transient Input Terminal Ripple Current Recommended Input Fuse Input Filter Component Values (L\C) Recommended External Input Capacitance 18 24 36 V 16.6 15.0 17.0 15.4 1.6 17.4 15.8 V V V A mA mA V mA A H\F F 110 1.5 0.4 290 1.0\6.6 220 9.6 140 3.0 20 50V transient for 100ms 18 Vin, trim up, in current limit 250V/ms input transient; 100 F output cap. RMS Fast acting external fuse recommended Internal values; see Figure E Typical ESR 0.1-0.2W OUTPUT CHARACTERISTICS Output Voltage Set Point Output Voltage Regulation Over Line Over Load Over Temperature Total Output Voltage Range Output Voltage Ripple and Noise Peak-to-Peak RMS Operating Output Current Range Output DC Current-Limit Inception Output DC Current-Limit Shutdown Voltage Back-Drive Current Limit while Enabled Back-Drive Current Limit while Disabled Maximum Output Capacitance 23.760 -360 23.400 0 5.5 0 24.000 24.240 V +0.1 +0.1 +0.3 +0.3 360 24.600 % % mV V 90 20 5.0 6.5 mV mV A A V A mA F 60 10 6.0 11.5 0.12 16 50 400 Over sample, line, load, temperature & life 20MHz bandwidth; see note 2 Full Load Full Load Subject to thermal derating Output Voltage 10% Low Negative current drawn from output Negative current drawn from output Vout nominal at full load (resistive load) DYNAMIC CHARACTERISTICS Output Voltage during Load Current Transient For a Step Change in Output Current (0.1A/s) Settling Time Turn-On Transient Turn-On Time Start-Up Inhibit Time Output Voltage Overshoot 1300 50 200 10 230 0 250 mV s 50% to 75% to 50% Iout max To within 1% Vout nom ms ms % Full load, Vout=90% nom. -40C to +125C; Figure F 400 F load capacitance, Iout = 0A % % See Figure 1 for efficiency curve See Figure 1 for efficiency curve EFFICIENCY 100% Load 50% Load 91.5 92.5 ISOLATION CHARACTERISTICS Isolation Voltage (dielectric strength) Input to Output Input to Base-Plate Output to Base-Plate Isolation Resistance Isolation Capacitance (input to output) 30 1000 2250 2250 2250 Vd c Vd c Vd c MW pF See Note 1 Note 1: Higher values of isolation capacitance can be added external to the module. Note 2: Output is terminated with 1 F ceramic and 15 F low-ESR tantalum capacitors (only 1F ceramic for Vout > 18 V). Product # IQ24240QTA05 Phone 1-888-567-9596 www.synqor.com Doc.# 005-I224005 Rev. B 7/16/07 Page 2 Input: Output: Current: Package: Technical Specification 18-36 V 24 V 5A Quarter-brick ELECTRICAL CHARACTERISTICS (Continued) Parameter P Min. Typ. Max. Units Notes & Conditions 125 125 125 100 C C C C Package rated to 150C UL rated max operating temp 130C See Figure 3 for derating curve Applies to baseplated and encased units only 270 kHz Regulation and Isolation stages 18 0.8 V V +10 +10 127 V kW % % % C C TEMPERATURE LIMITS FOR POWER DERATING CURVES Semiconductor Junction Temperature Board Temperature Transformer Temperature Maximum Baseplate Temperature, TB FEATURE CHARACTERISTICS Switching Frequency ON/OFF Control Off-State Voltage On-State Voltage ON/OFF Control Pull-Up Voltage Pull-Up Resistance Output Voltage Trim Range Output Voltage Remote Sense Range Output Over-Voltage Protection Over-Temperature Shutdown Over-Temperature Shutdown Restart Hysteresis Load Current Scale Factor 230 250 2.4 -2 -20 117 5 50 122 125 10 57 RELIABILITY CHARACTERISTICS Calculated MTBF (Telcordia) Calculated MTBF (MIL-217) Field Demonstrated MTBF Figures A & B Measured across Pins 8 & 4; Figure C Measured across Pins 8 & 4 Over full temp range; % of nominal Vout Average PCB Temperature See Output Load Current app. note on our web 106 Hrs. TR-NWT-000332; 80% load,300LFM, 40oC Ta 106 Hrs. MIL-HDBK-217F; 80% load, 300LFM, 40oC Ta 106 Hrs. See our website for details 2.5 1.8 STANDARDS COMPLIANCE Parameter P STANDARDS COMPLIANCE Notes UL/cUL 60950-1 EN60950-1 72/23/EEC 93/68/EEC Needle Flame Test (IEC 695-2-2) IEC 61000-4-2 GR-1089-CORE Telcordia (Bellcore) GR-513 File # E194341, Basic insulation & pollution degree 2 Certified by TUV Test on entire assembly; board & plastic components UL94V-0 compliant ESD test, 8kV - NP, 15kV air - NP (Normal Performance) Section 7 - electrical safety, Section 9 - bonding/grounding * An external input fuse must always be used to meet these safety requirements. Contact SynQor for official safety certificates on new releases or download from the SynQor website. OPTIONS PATENTS SynQor provides various options for Pin Length and Feature Set for this family of Power Interface Modules. Please consult the last page for information on available options. SynQor is protected under various patents. Please consult the last page for further information. Product # IQ24240QTA05 Phone 1-888-567-9596 www.synqor.com Doc.# 005-I224005 Rev. B 7/16/07 Page 3 Input: Output: Current: Package: Technical Specification 100 14 95 12 Power Dissipation (W) 90 Efficiency (%) 85 80 75 70 18 Vin 24 Vin 36 Vin 65 18-36 V 24 V 5A Quarter-brick 10 8 6 4 18 Vin 24 Vin 2 36 Vin 60 0 0 1 2 3 4 5 0 1 2 Load Current (A) 3 4 5 Load Current (A) Figure 1: Efficiency at nominal output voltage vs. load current for minimum, nominal, and maximum input voltage at 25C. Figure 2: Power dissipation at nominal output voltage vs. load current for minimum, nominal, and maximum input voltage at 25C. 6 5 Iout (A) 4 3 2 400 LFM (2.0 m/s) 300 LFM (1.5 m/s) 1 200 LFM (1.0 m/s) 100 LFM (0.5 m/s) 0 0 25 40 55 70 Semiconductor junction temperature is within 1C of surface temperature 85 Ambient Air Temperature (C) Figure 4: Open frame converter thermal plot at 4.8 amp load current (115.2 W) with 55C air flowing at the rate of 200 LFM. Air flows across the converter from pin 3 to pin 1 (nominal input voltage). 6 6 5 5 4 4 Iout (A) Iout (A) Figure 3: Open frame converter maximum output power derating vs. ambient air temperature for airflow rates of 100 LFM through 400 LFM. Air flows across the converter from pin 3 to pin 1 (nominal input voltage). 3 2 3 2 400 LFM (2.0 m/s) 400 LFM (2.0 m/s) 300 LFM (1.5 m/s) 1 300 LFM (1.5 m/s) 1 200 LFM (1.0 m/s) 200 LFM (1.0 m/s) 100 LFM (0.5 m/s) 100 LFM (0.5 m/s) 0 0 0 25 40 55 70 85 0 Ambient Air Temperature (C) Phone 1-888-567-9596 40 55 70 85 Ambient Air Temperature (C) Figure 5: Base-plated converter (without heatsink) max. output power derating vs. ambient air temperature for airflow rates of 100 LFM through 400 LFM. Air flows across the converter from pin 3 to pin 1 (nominal input voltage, TB=100C). Product # IQ24240QTA05 25 Figure 6: Base-plated converter (with 1/2" heatsink) max. output power derating vs. ambient air temperature for airflow rates of 100 LFM through 400 LFM. Air flows across the converter from pin 3 to pin 1 (nominal input voltage, TB=100C). www.synqor.com Doc.# 005-I224005 Rev. B 7/16/07 Page 4 Input: Output: Current: Package: Technical Specification Figure 7: Output voltage response to step-change in load current (50%-75%-50% of Iout(max); dI/dt = 0.08 A/ s). Load cap: 1 F ceramic capacitor. Ch 1: Vout (2 V/div), Ch 2: Iout (1 A/div). 18-36 V 24 V 5A Quarter-brick Figure 8: Output voltage response to step-change in input voltage (250 V/ms). Load cap: 100 F, electrolytic output capacitance. Ch 1: Vout (500 mV/div), Ch 2: Vin (10 V/div). 30 Output Voltage (V) 25 20 15 10 18 Vin 24 Vin 5 36 Vin 0 0 1 2 3 4 5 6 7 Load Current (A) Figure 9: Turn-on transient at full load (resistive load) (5 ms/div). Input voltage pre-applied. Ch 1: Vout (10 V/div). Ch 2: ON/OFF input (5 V/div). Product # IQ24240QTA05 Phone 1-888-567-9596 Figure 10: Output voltage vs. load current showing typical current limit curves and converter shutdown points. www.synqor.com Doc.# 005-I224005 Rev. B 7/16/07 Page 5 Input: Output: Current: Package: Technical Specification 18-36 V 24 V 5A Quarter-brick BASIC OPERATION AND FEATURES CONTROL FEATURES The InQor series converter uses a two-stage power conversion topology. The first stage is a buck-converter that keeps the output voltage constant over variations in line, load, and temperature. The second stage uses a transformer to provide the functions of input/output isolation and voltage step-up or step-down to achieve the output voltage required. REMOTE ON/OFF (Pin 2): The ON/OFF input, Pin 2, permits the user to control when the converter is on or off. This input is referenced to the return terminal of the input bus, Vin(-). The ON/OFF signal is active low (meaning that a low turns the converter on). Figure A details four possible circuits for driving the ON/OFF pin. Figure B is a detailed look of the internal ON/OFF circuitry. Both the first stage and the second stage switch at a fixed frequency for predictable EMI performance. Rectification of the transformer's output is accomplished with synchronous rectifiers. These devices, which are MOSFETs with a very low on-state resistance, dissipate far less energy than Schottky diodes. This is the primary reason that the InQor converter has such high efficiency, even at very low output voltages and very high output currents. Dissipation throughout the converter is so low that it does not require a heatsink for operation in many applications. Since a heatsink is not required, the InQor converter does not need a metal baseplate or potting material to help conduct the dissipated energy to the heatsink. The InQor converter can thus be built more simply and reliably using high yield surface mount techniques on a PCB substrate. Nevertheless, for those thermally demanding applications that require heatsinks or cold-plate mounting, an optional base-plated version of the InQor is available. In addition, for applications having a harsh environment, a totally encased and base-plated version is also available. The InQor series of half-brick and quarter-brick converters uses the industry standard footprint and pin-out configuration. ON/OFF ON/OFF Vin(_) Vin(_) Remote Enable Circuit REMOTE SENSE(+) (Pins 7 and 5): The SENSE(+) inputs correct for voltage drops along the conductors that connect the converter's output pins to the load. Pin 7 should be connected to Vout(+) and Pin 5 should be connected to Vout(-) at the point on the board where regulation is desired. A remote connection at the load can adjust for a voltage drop only as large as that specified in this datasheet, that is [Vout(+) - Vout(-)] - [Vsense(+) - Vsense(-)] < Sense Range % x Vout Pins 7 and 5 must be connected for proper regulation of the output voltage. If these connections are not made, the converter will deliver an output voltage that is slightly higher than its specified value. Note: the output over-voltage protection circuit senses the voltage across the output (pins 8 and 4) to determine when it should trigger, not the voltage across the converter's sense leads (pins 7 and 5). Therefore, the resistive drop on the board should be small enough so that output OVP does not trigger, even during load transients. 5V Negative Logic (Permanently Enabled) ON/OFF 50k 5V ON/OFF 50k TTL TTL/ CMOS ON/OFF Vin(_) Vin(_) Open Collector Enable Circuit Vin(_) Direct Logic Drive Figure A: Various circuits for driving the ON/OFF pin. Product # IQ24240QTA05 100pF Phone 1-888-567-9596 www.synqor.com Figure B: Internal ON/OFF pin circuitry Doc.# 005-I224005 Rev. B 7/16/07 Page 6 Input: Output: Current: Package: Technical Specification OUTPUT VOLTAGE TRIM (Pin 6): The TRIM input permits the user to adjust the output voltage across the sense leads up or down according to the trim range specifications. To decrease the output voltage, the user should connect a resistor between Pin 6 and Pin 5 (SENSE(-) input). For a desired decrease of the nominal output voltage, the value of the resistor should be Rtrim-down = - 10.22 (511 D%) (kW) where D% = Vnominal - Vdesired Vnominal x 100% To increase the output voltage, the user should connect a resistor between Pin 6 and Pin 7 (SENSE(+) input). For a desired increase of the nominal output voltage, the value of the resistor should be Rtrim-up = ( where 5.11VOUT(100+D%) _ 511 _ 1.225D% D% 10.22 ) (kW) VOUT = Nominal Output Voltage Figure C graphs the relationship between the trim resistor value and Rtrim-up and Rtrim-down, showing the total range the output voltage can be trimmed up or down. Trim Resistance (kOhms) 100,000.0 18-36 V 24 V 5A Quarter-brick Total DC Variation of Vout: For the converter to meet its full specifications, the maximum variation of the DC value of Vout, due to both trimming and remote load voltage drops, should not be greater than that specified for the output voltage trim range. PROTECTION FEATURES Input Under-Voltage Lockout: The converter is designed to turn off when the input voltage is too low, helping avoid an input system instability problem, described in more detail in the application note titled "Input System Instability". The lockout circuitry is a comparator with DC hysteresis. When the input voltage is rising, it must exceed the typical Turn-On Voltage Threshold value (listed on the specifications page) before the converter will turn on. Once the converter is on, the input voltage must fall below the typical Turn-Off Voltage Threshold value before the converter will turn off. Output Current Limit: The maximum current limit remains constant as the output voltage drops. However, once the impedance of the short across the output is small enough to make the output voltage drop below the specified Output DC Current-Limit Shutdown Voltage, the converter turns off. The converter then enters a "hiccup mode" where it repeatedly turns on and off at a 5 Hz (nominal) frequency with a 5% duty cycle until the short circuit condition is removed. This prevents excessive heating of the converter or the load board. Output Over-Voltage Limit: If the voltage across the output pins exceeds the Output Over-Voltage Protection threshold, the converter will immediately stop switching. This prevents damage to the load circuit due to 1) excessive series resistance in output current path from converter output pins to sense point, 2) a release of a short-circuit condition, or 3) a release of a current limit condition. Load capacitance determines exactly how high the output voltage will rise in response to these conditions. After 200 ms the converter will automatically restart. 10,000.0 1,000.0 100.0 10.0 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 % Increase in Vout % Decrease in Vout Figure C: Trim Graph Note: the TRIM feature does not affect the voltage at which the output over-voltage protection circuit is triggered. Trimming the output voltage too high may cause the over-voltage protection circuit to engage, particularly during transients. Over-Temperature Shutdown: A temperature sensor on the converter senses the average temperature of the module. The thermal shutdown circuit is designed to turn the converter off when the temperature at the sensed location reaches the OverTemperature Shutdown value. It will allow the converter to turn on again when the temperature of the sensed location falls by the amount of the Over-Temperature Shutdown Restart Hysteresis value. It is not necessary for the user to add capacitance at the Trim pin. The node is internally bypassed to eliminate noise. Product # IQ24240QTA05 Phone 1-888-567-9596 www.synqor.com Doc.# 005-I224005 Rev. B 7/16/07 Page 7 Input: Output: Current: Package: Technical Specification APPLICATION CONSIDERATIONS Input System Instability: This condition can occur because any DC/DC converter appears incrementally as a negative resistance load. A detailed application note titled "Input System Instability" is available on the SynQor website which provides an understanding of why this instability arises, and shows the preferred solution for correcting it. Application Circuits: Figure D provides a typical circuit diagram which details the input filtering and voltage trimming. Input Filtering and External Capacitance: Figure E provides a diagram showing the internal input filter components. This filter dramatically reduces input terminal ripple current, which otherwise could exceed the rating of an external electrolytic input capacitor. The recommended external input capacitance is specified in the Input Characteristics section on the Electrical Specifications page. More detailed information is available in the application note titled "EMI Characteristics" on the SynQor website. Startup Inhibit Period: The Startup Inhibit Period ensures that the converter will remain off for approximately 200ms when it is shut down for any reason. When an output short is present, this generates a 5Hz "hiccup mode," which prevents the converter from overheating. In all, there are seven ways that the converter can be shut down, initiating a Startup Inhibit Period: * Input Under-Voltage Lockout * Input Over-Voltage Shutdown (not present in Quarter-brick) * Output Over-Voltage Protection * Over Temperature Shutdown * Current Limit * Short Circuit Protection * Turned off by the ON/OFF input Figure F shows three turn-on scenarios, where a Startup Inhibit Period is initiated at t0, t1, and t2: Before time t0, when the input voltage is below the UVL threshold, the unit is disabled by the Input Under-Voltage Lockout feature. When the input voltage rises above the UVL threshold, the Input Under-Voltage Lockout is released, and a Startup Inhibit Period is initiated. At the end of this delay, the ON/OFF pin is evaluated, and since it is active, the unit turns on. Vin(+) Vin External Input Filter 18-36 V 24 V 5A Quarter-brick Vout(+) Vsense(+) Electrolytic Capacitor ON/OFF Trim Vsense(_) Vin(_) Rtrim-up or Rtrim-down Cload Iload Vout(_) Figure D: Typical application circuit (negative logic unit, permanently enabled). L Vin(+) C Vin(_) Figure E: Internal Input Filter Diagram (component values listed on the specifications page). Product # IQ24240QTA05 Phone 1-888-567-9596 www.synqor.com Doc.# 005-I224005 Rev. B 7/16/07 Page 8 Input: Output: Current: Package: Technical Specification At time t1, the unit is disabled by the ON/OFF pin, and it cannot be enabled again until the Startup Inhibit Period has elapsed. When the ON/OFF pin goes high after t2, the Startup Inhibit Period has elapsed, and the output turns on within the typical Turn-On Time. An optional base-plated version is available for applications that require heatsinks, and an encased version is available for harsh environments. Thermal Considerations: Because the InQor series of converters are so efficient, they don't need a heatsink in many applications. Figure 3 shows a power derating curve of an open frame converter for various ambient temperatures and airflow rates. These curves represent a condition which results in a maximum semiconductor junction temperature of 125C, which is comfortable below the 150C ratings of these components. For those applications that are more demanding, or that require a cold-plate mounting, the InQor converters may be purchased with an optional base-plate. The maximum operating base-plate temperature, TB, is 100C. As long as the user's thermal system keeps TB < 100C, the converter can deliver its full rated power. 18-36 V 24 V 5A Quarter-brick rate. This information is usually available from the heatsink vendor. The following formula can the be used to determine the maximum power the converter can dissipate for a given thermal condition if its base-plate is to be no higher than 100C. max Pdiss = 100C - TA RTHBA This value of power dissipation can then be used in conjunction with the data shown in Figure 2 to determine the maximum load current (and power) that the converter can deliver in the given thermal condition. For convenience, Figures 5 and 6 provide power derating curves for a converter with a base-plate without a heatsink and with a typical 1/2" high heatsink. RoHS Compliance: The EU led RoHS (Restriction of Hazardous Substances) Directive bans the use of Lead, Cadmium, Hexavalent Chromium, Mercury, Polybrominated Biphenyls (PBB), and Polybrominated Diphenyl Ether (PBDE) in Electrical and Electronic Equipment. This SynQor product is 6/6 RoHS compliant. For more information please refer to SynQor's RoHS addendum available at our RoHS Compliance / Lead Free Initiative web page or e-mail us at rohs@synqor.com. A power derating curve can be calculated for any heatsink that is attached to the base-plate of the converter. It is only necessary to determine the thermal resistance, RTHBA, of the chosen heatsink between the base-plate and the ambient air for a given airflow Vin Under-Voltage Lockout Turn-On Threshold ON/OFF (neg logic) ON OFF ON OFF ON 9ms (typical Vout turn on time) 200ms (typical start-up inhibit period) t1 t0 200ms 200ms t t2 Figure F: Startup Inhibit Period (turn-on time not to scale) Product # IQ24240QTA05 Phone 1-888-567-9596 www.synqor.com Doc.# 005-I224005 Rev. B 7/16/07 Page 9 Input: Output: Current: Package: Technical Specification 18-36 V 24 V 5A Quarter-brick MECHANICAL DIAGRAM Open Frame NOTES PIN DESIGNATIONS 1) Pins 1-3, 5-7 are 0.040" (1.02mm) diameter with 0.080" (2.03 mm) diameter standoff shoulders. 2) Pins 4 and 8 are 0.062" (1.57 mm) diameter with 0.100" (2.54 mm) diameter standoff shoulders. 3) Recommended pin length is 0.03" (0.76mm) greater than the PCB thickness. 4) All Pins: Material - Copper Alloy; Finish - Matte Tin over Nickel plate 5) Undimensioned components shown are for visual reference only. 6) Weight: Open frame: 1.5 oz. (42 g) Base-plated: 2.5 oz. (69 g) typical Encased: 3.02 oz. (85.7 g) typical 7) All dimensions in inches (mm) Tolerances: x.xx +/-0.02 in. (x.x +/-0.5mm) x.xxx +/-0.010 in. (x.xx +/-0.25mm) 8) Workmanship: Meets or exceeds IPC-A-610C Class II 9) UL/TUV standards require a clearance greater than 0.04" (1.02mm) between input and output for Basic insulation. This issue should be considered if any copper traces are on the top side of the user's board. Note that the ferrite cores are considered part of the input/primary circuit. 10) M3 screws used to bolt unit's baseplate to other surfaces (such as a heatsink) must not exceed 0.100" (2.54 mm) depth below the surface of the baseplate. 11) Applied torque per screw should not exceed 6in-lb. (0.7 Nm). 12) Baseplate flatness tolerance is 0.004" (.10mm) TIR for surface. Product # IQ24240QTA05 Phone 1-888-567-9596 Pin No. Name Function 1 Vin(+) Positive input voltage 2 ON/OFF TTL input to turn converter on and off, referenced to Vin(-), with internal pull up. 3 Vin(-) Negative input voltage 4 Vout(-) Negative output voltage 5 SENSE(-) Negative remote sense1 6 TRIM Output voltage trim2 7 SENSE(+) Positive remote sense3 8 Vout(+) Positive output voltage Notes: 1. SENSE(-) should be connected to Vout(-) either remotely or at the converter. 2. Leave TRIM pin open for nominal output voltage. 3. SENSE(+) should be connected to Vout(+) either remotely or at the converter. www.synqor.com Doc.# 005-I224005 Rev. B 7/16/07 Page 10 Input: Output: Current: Package: Technical Specification 18-36 V 24 V 5A Quarter-brick MECHANICAL DIAGRAM (continued) Base-plated Encased Product # IQ24240QTA05 Phone 1-888-567-9596 www.synqor.com Doc.# 005-I224005 Rev. B 7/16/07 Page 11 Input: Output: Current: Package: Technical Specification 18-36 V 24 V 5A Quarter-brick PART NUMBERING SYSTEM ORDERING INFORMATION The part numbering system for SynQor's InQor DC/DC converters follows the format shown in the example below. The tables below show the valid model numbers and ordering options for converters in this product family. When ordering SynQor converters, please ensure that you use the complete 15 character part number consisting of the 12 character base part number and the additional 3 characters for options. A "-G" suffix indicates the product is 6/6 RoHS compliant. IQ 24 240 Q T A 05 N R S - G 6/6 RoHS Options (see Ordering Information) Output Current Thermal Design (see Ordering Info) Performance Level Package Size Output Voltage Input Voltage Product Family The first 12 characters comprise the base part number and the last 3 characters indicate available options. The "-G" suffix indicates 6/6 RoHS compliance. Model Number Input Voltage IQ24018QTw 40xyz IQ24033QTw 30xyz IQ24050QTw 24xyz IQ24070QTw 17xyz IQ24120QTw 10xyz IQ24150QTw 08xyz IQ24240QTw 05xyz IQ24300QTw 04xyz IQ24480QTw 2Fxyz 18 - 36 V 18 - 36 V 18 - 36 V 18 - 36 V 18 - 36 V 18 - 36 V 18 - 36 V 18 - 36 V 18 - 36 V Output Max Output Voltage Current 1.8 V 40 A 3.3 V 30 A 5V 24 A 7V 17 A 12 V 10 A 15 V 8A 24 V 5A 30 V 4A 48 V 2.5 A The following option choices must be included in place of the x y z spaces in the model numbers listed above. Application Notes Options Description: w x y z A variety of application notes and technical white papers can be downloaded in pdf format from our website. PATENTS (additional patent applications may be filed) Thermal Design Enable Logic Pin Length Feature Set A - Open Frame B - Baseplated C - Encased N - Negative R - 0.180" S - Standard SynQor holds the following patents, one or more of which might apply to this product: 5,999,417 6,594,159 6,927,987 6,222,742 6,731,520 7,050,309 6,545,890 6,894,468 7,072,190 6,577,109 6,896,526 7,085,146 Contact SynQor for further information: Phone: Toll Free: Fax: E-mail: Web: Address: Product # IQ24240QTA05 978-849-0600 888-567-9596 978-849-0602 power@synqor.com www.synqor.com 155 Swanson Road Boxborough, MA 01719 USA Phone 1-888-567-9596 Warranty SynQor offers a three (3) year limited warranty. Complete warranty information is listed on our website or is available upon request from SynQor. Information furnished by SynQor is believed to be accurate and reliable. However, no responsibility is assumed by SynQor for its use, nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of SynQor. www.synqor.com Doc.# 005-I224005 Rev. B 7/16/07 Page 12